trominon.

/ˈtrɒmɪnəʊ/

Etymology: < tri- comb. form + -omino (in domino n. 3) by deliberately false analogy (see quot. 1961 at pentomino n. 1).

Any planar shape formed by joining three identical squares by their edges.

ΘΚΠ

the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > other

amblygon1570

obliquea1608

triangulate1610

pelecoid1706

leaf1716

oblongitude1739

hexagram1863

polystigm1863

tetragram1863

tetrastigm1863

trigram1882

tetromino1954

tromino1954

tetrabolo1961

Penrose tile1975

1954 Amer. Math. Monthly 61 676 It is impossible to cover the checker board with 21 straight trominoes, and a monomino in the upper left-hand corner of the board.

1961 New Scientist 2 Nov. 316/2 A domino is formed from two adjacent squares: he [sc. Golomb] argues that practical needs and false etymology will justify our calling a square a monomino—whence we have a series monomino, domino, tromino, tetromino.., and Maestro pieces then become pentominoes.

1979 Sci. Amer. Apr. 19/1 The games played with the two 3-cell animals (the trominoes) are slightly more difficult to analyze.

This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2018).

单词	tromino
释义	trominon. /ˈtrɒmɪnəʊ/ Etymology: < tri- comb. form + -omino (in domino n. 3) by deliberately false analogy (see quot. 1961 at pentomino n. 1). Any planar shape formed by joining three identical squares by their edges. ΘΚΠ the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > other amblygon1570 obliquea1608 triangulate1610 pelecoid1706 leaf1716 oblongitude1739 hexagram1863 polystigm1863 tetragram1863 tetrastigm1863 trigram1882 tetromino1954 tromino1954 tetrabolo1961 Penrose tile1975 1954 Amer. Math. Monthly 61 676 It is impossible to cover the checker board with 21 straight trominoes, and a monomino in the upper left-hand corner of the board. 1961 New Scientist 2 Nov. 316/2 A domino is formed from two adjacent squares: he [sc. Golomb] argues that practical needs and false etymology will justify our calling a square a monomino—whence we have a series monomino, domino, tromino, tetromino.., and Maestro pieces then become pentominoes. 1979 Sci. Amer. Apr. 19/1 The games played with the two 3-cell animals (the trominoes) are slightly more difficult to analyze. This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2018). < n.1954
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